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Lawnmowers are the most common kind of grass cutter that most homeowners use. Mowers may be rotary types, where blades swirl horizontal to the ground, or reel mowers where blades cut vertically. Typically gas or electric powered, rotary mowers may be self-propelled or rely on manpower to make them move. If you live in a home with a yard, you probably use at least one kind of grass cutter to keep your yard looking tidy. Some blades are mainly designed to cut the grass clippings into tiny pieces that can be used in mulch.

Security systems are becoming increasingly automated, particularly in sensing and communicating hazards and vulnerabilities. This situation is true in both crime-related applications, such as intrusion-detection […]